▎ 摘　　要

NOVELTY - Preparation of graphene high-efficiency energy-saving lamp involves baking ammonium paratungstate in air at 500 degrees C into tungsten trioxide, adding potassium oxide, silicon oxide and aluminum oxide to tungsten trioxide, reducing the doped tungsten trioxide with hydrogen, obtaining metal tungsten powder, immersing graphene in deionized water, oxidizing, drying, obtaining graphene oxide, mixing the metal tungsten powder with the graphene oxide, pressing obtained metal tungsten powder doped with graphene oxide into an elongate square strip in a mold, energizing the strip in hydrogen gas, sintering at 2800-3200 degrees C, swaging the sintered tungsten strip, forming a tungsten rod having diameter of 3 mm, drawing the rod, obtaining a tungsten wire, preparing metal contacts which have two wires contacted with the tungsten wire, and enclosing the wires and filaments in a glass bulb filled with an inert gas. USE - Preparation of graphene high-efficiency energy-saving lamp. ADVANTAGE - The method enables preparation of graphene high-efficiency energy-saving lamp with improved electroconductivity and durability. DETAILED DESCRIPTION - Preparation of graphene high-efficiency energy-saving lamp involves baking ammonium paratungstate in air at 500 degrees C into tungsten trioxide, adding potassium oxide, silicon oxide and aluminum oxide to tungsten trioxide, reducing the doped tungsten trioxide with hydrogen, obtaining metal tungsten powder, immersing graphene in deionized water, oxidizing, drying, obtaining graphene oxide, mixing the metal tungsten powder with the graphene oxide, pressing obtained metal tungsten powder doped with graphene oxide into an elongate square strip in a mold, energizing the strip in hydrogen gas, sintering at 2800-3200 degrees C, swaging the sintered tungsten strip, forming a tungsten rod having diameter of 3 mm, drawing the rod, obtaining a tungsten wire, preparing metal contacts which have two wires contacted with the tungsten wire, and enclosing the wires and filaments in a glass bulb filled with an inert gas. The total content of potassium oxide, silicon oxide and aluminum oxide is 1% or less. The content of graphene oxide is 1-3% with respect to the total content of metal tungsten powder.